Exchange spin current

E. Saitoh, K. Ando

研究成果: Chapter

抜粋

This chapter introduces the concept of exchange spin current, which derives from rewriting the exchange interaction in magnets and formulating a spin-wave spin current. States of matter can be classified into several types in terms of magnetic properties. In paramagnetic and diamagnetic states, matter has no magnetic order and exhibits zero magnetization in the absence of external magnetic fields. In ferromagnetic states, the permanent magnetic moments of atoms or ions align parallel to a certain direction, and the matter exhibits finite magnetization even in the absence of external magnetic fields. In ferrimagnets, the moments align antiparallel but the cancellation is not perfect and net magnetization appears. This interaction that aligns spins is called the exchange interaction.

元の言語English
ホスト出版物のタイトルSpin Current
出版者Oxford University Press
ページ22-29
ページ数8
ISBN(印刷物)9780198787075
DOI
出版物ステータスPublished - 2017 12 21

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • これを引用

    Saitoh, E., & Ando, K. (2017). Exchange spin current. : Spin Current (pp. 22-29). Oxford University Press. https://doi.org/10.1093/oso/9780198787075.003.0003